and codirect earth of the center for traumatic at boston university. high school is an interesting question. it's where i started playing football. and it's hard to figure where on the spectrum it fits. we know youth is probably more dangerous than high school. we know that high school is a big part of our culture. i kind of want to go back, i have a lots of notes here to separate youth from kind of professional and then kind of where we're in the middle. because i think this discussion is really what is unique about football versus other sports and while we're having the discussion. a lot comes down to the adult game is not really separated from the youth game. in a meaningful way. like soccer there's no heading before a search age. no checking in ice hockey. baseball no curve ball. we don't do that football. it's the real game where head contact is not rare, and accidental. and so i think we have to kind of identify that as a big issue. but i think we have to look to in terms what we should be doing we actually can look up to the nfl and the nfl pa a